Rolex

The Rolex Microstella Tool The Microstella is Rolex system to adjust the balance wheel to make sure the watch keep the COSC standard. To do that there is a special tool to adjust the screws with. The old tool looks like this and it's oil filled to be a li...  

I always wondered what was this Microstella tool and how it worked, now I know! Thank youk Jocke, for this superb series of posts. Nicolas.

Great post Jocke so cool and well explained Awesome pictures of course Must say that old tool looks much cooler to me Best D

very informative post, is this micro stella commonly use in watch industry? say patek or lange. thanks for sharing best, Ed

so is it Rolex way to adjust the balance, ALS & PP do it in their own way.

however do you have a picture of the tool next to something for scale..? It looks like a 'big' tool but when you then realise what it does it must be small but I can't work out the relative scale of it. Thanks, Andy.

Nice to know what it actually does. Thanks Jocke!

... thank you for the explanation and clear & great photography as usual to show the way it is employed to adjust the balance screws. Very cordially, Abel.

... total WatchTech action here. I want one but I don't why. Cheers, my friend. - Scott

Very nice post. A friend watchmaker taught me how to use it long time ago, funny tool. Thanks for sharing. Vte :)

This was a great post. I had not seen this tool before. I love having a small glimpse into it all.